writeup_draft

1. Project Introduction

2. Research Question

3. Dataset Information

Table 1. Dataset information

Detail	Description
Data Source	NOAA NCEI Marine Microplastics
Retrieved from	https://www.ncei.noaa.gov/products/microplastics
Variables, wrangled	Year, Month, Day, Measurement, Unit, Density.Range, Density.Class, Latitude, Longitude
Date Range, wrangled	April 28, 1972 - February 21, 2014

Table 2. NOAA NCEI Microplastics data contributors

	Citation	DOI
1	Barrows et al.2018	https://doi.org/10.1016/j.envpol.2018.02.062
3	Faure et al.2015	https://doi.org/10.1007/s11356-015-4453-3
5	Law et al.2014	https://doi.org/10.1021/es4053076
6	Goldstein et al.2013	https://doi.org/10.1371/journal.pone.0080020
7	Courtene-Jones et al. 2020	https://doi.org/10.1016/j.marpolbul.2020.111092
8	Russell and Webster, 2021	https://doi.org/10.1016/j.marpolbul.2021.112210
9	Law et al.2010	https://doi.org/10.1126/science.1192321
21	Tunnell et al. 2020	https://doi.org/10.1016/j.marpolbul.2019.110794
31	Kanhai et al. 2017	http://dx.doi.org/10.1016/j.marpolbul.2016.12.025
38	Alvarez-Zeferino et al. 2020	https://doi.org/10.1016/j.resconrec.2019.104633
48	McEachern et al. 2019	https://doi.org/10.1016/j.marpolbul.2019.07.068
57	Queiroz et al.2022	https://doi.org/10.1016/j.scitotenv.2022.156259
63	Suaria et al.2020	https://doi.org/10.1016/j.envint.2020.105494
82	Pedrotti et al.2022	http://dx.doi.org/10.1016/j.scitotenv.2022.155958
133	Eriksen et al.2014	https://doi.org/10.1371/journal.pone.0111913
138	de Haan et al.2019	https://doi.org/10.1016/j.marpolbul.2019.01.053
142	Nash et al. 2023	https://doi.org/10.1021/acs.est.2c05926
145	Fulfer and Walsh, 2023	https://doi.org/10.1038/s41598-023-36228-8
176	Eriksen et al.2018	https://doi.org/10.1016/j.envpol.2017.09.058
177	Alfaro-Núñez et al.2021	https://doi.org/10.1038/s41598-021-85939-3
183	de Haan et al.2022	https://doi.org/10.1088/1748-9326/ac5df1
189	Joyce et al. 2022	https://doi.org/10.1016/j.scitotenv.2022.154036
223	Seemungal et al. 2022	https://doi.org/10.1007/s11852-021-00846-z
249	González-Hernández et al. 2020	https://doi.org/10.1016/j.marpolbul.2019.110757
291	Eriksen et al.2013	https://doi.org/10.1016/j.marpolbul.2012.12.021
296	Egger et al.2022	https://doi.org/10.1038/s41598-022-17742-7
300	Egger et al.2020	https://doi.org/10.1088/1748-9326/abbb4f
311	Tanhua et al.2020	https://doi.org/10.1371/journal.pone.0243203
314	Rodrigues et al. 2020	https://doi.org/10.3389/fenvs.2020.582217
414	Egger et al.2021	https://doi.org/10.3389/fmars.2021.626026
427	Rodrigues et al. 2022	https://doi.org/10.3389/fenvs.2022.998513
474	Setiti et al.2021	http://dx.doi.org/10.12681/mms.24899
569	Cruz-Salas et al. 2022	https://doi.org/10.1016/j.rsma.2022.102423
600	Rose and Webber, 2019	https://doi.org/10.1016/j.scitotenv.2019.01.319
2433	Kanhai et al. 2018	https://doi.org/10.1016/j.marpolbul.2018.03.011
2581	Egger et al.2020	https://doi.org/10.1038/s41598-020-64465-8
3239	Suaria et al.2016	https://doi.org/10.1038/srep37551

4. Exploratory Analysis

4.1 Global Data

This is data from entire globe.

4.2 NPSG Data

Distribution of Samples

Samples within the NPSG.

Distribution of Plastics Densities

Samples of different density classes.

Other variables: does the amount of plastic differ with time?

Plastics over Time

At first glance, there appears to be an upward trend.